Somebody's using my blog

I did a search on Google for the topic of my most recent post, "Grape and Peanut Butter Omelet," and found that another web site, mykerem.com, a forum for wine, of which I am a registered user, had posted my post as well as my previous post. They did not list me as the author nor provide a link to the blog, something which they do for other things they post. I sent them and inquiry but haven't received an answer yet Is what they are doing, which amounts to stealing my original material, legal? How can I force them to list my israelwinetaster.com blog as the author with a link to the blog?

Thank you justjennifer. I contacted Rogov directly who denied any responsibility for the mykerem website other than being an occasional contributor. He advised contacting them directly which I have done, demanding they attribute my blog as to authorship. If they don't I'll go the DMCA route.

Thank you very much for your response and help. Incidentally, how do you know Rogov?